Helly Hansen Kensington Lifaloft Vest is a great all year round piece in any conditions, keeping you warm even when wet. Lifaloft™ is an insulation revolution that will keep you warmer with less weight and bulk. Softshell fabric with membrane and DWR (Durable Water Repellency) treatment. Perfect to use under the Kensington Hooded Lifaloft Jacket on colder days.